static unsigned get_aligned_compressed_row_stride(
mesa_format format,
unsigned width,
unsigned minStride)
{
const unsigned blockBytes = _mesa_get_format_bytes(format);
unsigned blockWidth, blockHeight;
unsigned stride;
_mesa_get_format_block_size(format, &blockWidth, &blockHeight);
/* Count number of blocks required to store the given width.
* And then multiple it with bytes required to store a block.
*/
stride = (width + blockWidth - 1) / blockWidth * blockBytes;
/* Round the given minimum stride to the next full blocksize.
* (minStride + blockBytes - 1) / blockBytes * blockBytes
*/
if ( stride < minStride )
stride = (minStride + blockBytes - 1) / blockBytes * blockBytes;
radeon_print(RADEON_TEXTURE, RADEON_TRACE,
"%s width %u, minStride %u, block(bytes %u, width %u):"
"stride %u\n",
__func__, width, minStride,
blockBytes, blockWidth,
stride);
return stride;
}
void
brw_miptree_layout(struct brw_context *brw,
struct intel_mipmap_tree *mt,
uint32_t layout_flags)
{
mt->tr_mode = INTEL_MIPTREE_TRMODE_NONE;
intel_miptree_set_alignment(brw, mt, layout_flags);
intel_miptree_set_total_width_height(brw, mt);
if (!mt->total_width || !mt->total_height) {
intel_miptree_release(&mt);
return;
}
/* On Gen9+ the alignment values are expressed in multiples of the block
* size
*/
if (brw->gen >= 9) {
unsigned int i, j;
_mesa_get_format_block_size(mt->format, &i, &j);
mt->align_w /= i;
mt->align_h /= j;
}
if ((layout_flags & MIPTREE_LAYOUT_FOR_BO) == 0)
mt->tiling = brw_miptree_choose_tiling(brw, mt, layout_flags);
}
/**
* This is the software fallback for Driver.GetCompressedTexImage().
* All error checking will have been done before this routine is called.
*/
void
_mesa_get_compressed_teximage(struct gl_context *ctx,
struct gl_texture_image *texImage,
GLvoid *img)
{
const GLuint row_stride =
_mesa_format_row_stride(texImage->TexFormat, texImage->Width);
GLuint i;
GLubyte *src;
GLint srcRowStride;
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* pack texture image into a PBO */
GLubyte *buf = (GLubyte *)
ctx->Driver.MapBufferRange(ctx, 0, ctx->Pack.BufferObj->Size,
GL_MAP_WRITE_BIT, ctx->Pack.BufferObj);
if (!buf) {
/* out of memory or other unexpected error */
_mesa_error(ctx, GL_OUT_OF_MEMORY,
"glGetCompresssedTexImage(map PBO failed)");
return;
}
img = ADD_POINTERS(buf, img);
}
/* map src texture buffer */
ctx->Driver.MapTextureImage(ctx, texImage, 0,
0, 0, texImage->Width, texImage->Height,
GL_MAP_READ_BIT, &src, &srcRowStride);
if (src) {
/* no pixelstore or pixel transfer, but respect stride */
if (row_stride == srcRowStride) {
const GLuint size = _mesa_format_image_size(texImage->TexFormat,
texImage->Width,
texImage->Height,
texImage->Depth);
memcpy(img, src, size);
}
else {
GLuint bw, bh;
_mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
for (i = 0; i < (texImage->Height + bh - 1) / bh; i++) {
memcpy((GLubyte *)img + i * row_stride,
(GLubyte *)src + i * srcRowStride,
row_stride);
}
}
ctx->Driver.UnmapTextureImage(ctx, texImage, 0);
}
else {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetCompresssedTexImage");
}
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
ctx->Driver.UnmapBuffer(ctx, ctx->Pack.BufferObj);
}
}
unsigned get_texture_image_size(
mesa_format format,
unsigned rowStride,
unsigned height,
unsigned depth,
unsigned tiling)
{
if (_mesa_is_format_compressed(format)) {
unsigned blockWidth, blockHeight;
_mesa_get_format_block_size(format, &blockWidth, &blockHeight);
return rowStride * ((height + blockHeight - 1) / blockHeight) * depth;
} else if (tiling) {
/* Need to align height to tile height */
unsigned tileWidth, tileHeight;
get_tile_size(format, &tileWidth, &tileHeight);
tileHeight--;
height = (height + tileHeight) & ~tileHeight;
}
return rowStride * height * depth;
}
/**
* Decompress a compressed texture image, returning a GL_RGBA/GL_FLOAT image.
* \param srcRowStride stride in bytes between rows of blocks in the
* compressed source image.
*/
void
_mesa_decompress_image(mesa_format format, GLuint width, GLuint height,
const GLubyte *src, GLint srcRowStride,
GLfloat *dest)
{
compressed_fetch_func fetch;
GLuint i, j;
GLuint bytes, bw, bh;
GLint stride;
bytes = _mesa_get_format_bytes(format);
_mesa_get_format_block_size(format, &bw, &bh);
fetch = _mesa_get_compressed_fetch_func(format);
if (!fetch) {
_mesa_problem(NULL, "Unexpected format in _mesa_decompress_image()");
return;
}
stride = srcRowStride * bh / bytes;
for (j = 0; j < height; j++) {
for (i = 0; i < width; i++) {
fetch(src, stride, i, j, dest);
dest += 4;
}
}
}
static void
copy_miptrees(struct brw_context *brw,
struct intel_mipmap_tree *src_mt,
int src_x, int src_y, int src_z, unsigned src_level,
struct intel_mipmap_tree *dst_mt,
int dst_x, int dst_y, int dst_z, unsigned dst_level,
int src_width, int src_height)
{
unsigned bw, bh;
if (brw->gen >= 6) {
brw_blorp_copy_miptrees(brw,
src_mt, src_level, src_z,
dst_mt, dst_level, dst_z,
src_x, src_y, dst_x, dst_y,
src_width, src_height);
return;
}
/* We are now going to try and copy the texture using the blitter. If
* that fails, we will fall back mapping the texture and using memcpy.
* In either case, we need to do a full resolve.
*/
intel_miptree_all_slices_resolve_hiz(brw, src_mt);
intel_miptree_all_slices_resolve_depth(brw, src_mt);
intel_miptree_resolve_color(brw, src_mt, 0);
intel_miptree_all_slices_resolve_hiz(brw, dst_mt);
intel_miptree_all_slices_resolve_depth(brw, dst_mt);
intel_miptree_resolve_color(brw, dst_mt, 0);
_mesa_get_format_block_size(src_mt->format, &bw, &bh);
/* It's legal to have a WxH that's smaller than a compressed block. This
* happens for example when you are using a higher level LOD. For this case,
* we still want to copy the entire block, or else the decompression will be
* incorrect.
*/
if (src_width < bw)
src_width = ALIGN_NPOT(src_width, bw);
if (src_height < bh)
src_height = ALIGN_NPOT(src_height, bh);
if (copy_image_with_blitter(brw, src_mt, src_level,
src_x, src_y, src_z,
dst_mt, dst_level,
dst_x, dst_y, dst_z,
src_width, src_height))
return;
/* This is a worst-case scenario software fallback that maps the two
* textures and does a memcpy between them.
*/
copy_image_with_memcpy(brw, src_mt, src_level,
src_x, src_y, src_z,
dst_mt, dst_level,
dst_x, dst_y, dst_z,
src_width, src_height);
}
/**
* @param for_bo Indicates that the caller is
* intel_miptree_create_for_bo(). If true, then do not create
* \c stencil_mt.
*/
struct intel_mipmap_tree *
intel_miptree_create_layout(struct intel_context *intel,
GLenum target,
mesa_format format,
GLuint first_level,
GLuint last_level,
GLuint width0,
GLuint height0,
GLuint depth0,
bool for_bo)
{
struct intel_mipmap_tree *mt = calloc(sizeof(*mt), 1);
if (!mt)
return NULL;
DBG("%s target %s format %s level %d..%d <-- %p\n", __func__,
_mesa_enum_to_string(target),
_mesa_get_format_name(format),
first_level, last_level, mt);
mt->target = target_to_target(target);
mt->format = format;
mt->first_level = first_level;
mt->last_level = last_level;
mt->logical_width0 = width0;
mt->logical_height0 = height0;
mt->logical_depth0 = depth0;
/* The cpp is bytes per (1, blockheight)-sized block for compressed
* textures. This is why you'll see divides by blockheight all over
*/
unsigned bw, bh;
_mesa_get_format_block_size(format, &bw, &bh);
assert(_mesa_get_format_bytes(mt->format) % bw == 0);
mt->cpp = _mesa_get_format_bytes(mt->format) / bw;
mt->compressed = _mesa_is_format_compressed(format);
mt->refcount = 1;
if (target == GL_TEXTURE_CUBE_MAP) {
assert(depth0 == 1);
depth0 = 6;
}
mt->physical_width0 = width0;
mt->physical_height0 = height0;
mt->physical_depth0 = depth0;
intel_get_texture_alignment_unit(intel, mt->format,
&mt->align_w, &mt->align_h);
(void) intel;
if (intel->is_945)
i945_miptree_layout(mt);
else
i915_miptree_layout(mt);
return mt;
}
/**
* Map texture memory/buffer into user space.
* Note: the region of interest parameters are ignored here.
* \param mapOut returns start of mapping of region of interest
* \param rowStrideOut returns row stride in bytes
*/
static void
radeon_map_texture_image(struct gl_context *ctx,
struct gl_texture_image *texImage,
GLuint slice,
GLuint x, GLuint y, GLuint w, GLuint h,
GLbitfield mode,
GLubyte **map,
GLint *stride)
{
radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
radeon_texture_image *image = get_radeon_texture_image(texImage);
radeon_mipmap_tree *mt = image->mt;
GLuint texel_size = _mesa_get_format_bytes(texImage->TexFormat);
GLuint width = texImage->Width;
GLuint height = texImage->Height;
struct radeon_bo *bo = !image->mt ? image->bo : image->mt->bo;
unsigned int bw, bh;
GLboolean write = (mode & GL_MAP_WRITE_BIT) != 0;
_mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
assert(y % bh == 0);
y /= bh;
texel_size /= bw;
if (bo && radeon_bo_is_referenced_by_cs(bo, rmesa->cmdbuf.cs)) {
radeon_print(RADEON_TEXTURE, RADEON_VERBOSE,
"%s for texture that is "
"queued for GPU processing.\n",
__func__);
radeon_firevertices(rmesa);
}
if (image->bo) {
/* TFP case */
radeon_bo_map(image->bo, write);
*stride = get_texture_image_row_stride(rmesa, texImage->TexFormat, width, 0, texImage->TexObject->Target);
*map = bo->ptr;
} else if (likely(mt)) {
void *base;
radeon_mipmap_level *lvl = &image->mt->levels[texImage->Level];
radeon_bo_map(mt->bo, write);
base = mt->bo->ptr + lvl->faces[image->base.Base.Face].offset;
*stride = lvl->rowstride;
*map = base + (slice * height) * *stride;
} else {
/* texture data is in malloc'd memory */
assert(map);
*stride = _mesa_format_row_stride(texImage->TexFormat, width);
*map = image->base.Buffer + (slice * height) * *stride;
}
*map += y * *stride + x * texel_size;
}
int intel_compressed_num_bytes(GLuint mesaFormat)
{
GLuint bw, bh;
GLuint block_size;
block_size = _mesa_get_format_bytes(mesaFormat);
_mesa_get_format_block_size(mesaFormat, &bw, &bh);
return block_size / bw;
}
static unsigned int
intel_horizontal_texture_alignment_unit(struct brw_context *brw,
gl_format format)
{
/**
* From the "Alignment Unit Size" section of various specs, namely:
* - Gen3 Spec: "Memory Data Formats" Volume, Section 1.20.1.4
* - i965 and G45 PRMs: Volume 1, Section 6.17.3.4.
* - Ironlake and Sandybridge PRMs: Volume 1, Part 1, Section 7.18.3.4
* - BSpec (for Ivybridge and slight variations in separate stencil)
*
* +----------------------------------------------------------------------+
* | | alignment unit width ("i") |
* | Surface Property |-----------------------------|
* | | 915 | 965 | ILK | SNB | IVB |
* +----------------------------------------------------------------------+
* | YUV 4:2:2 format | 8 | 4 | 4 | 4 | 4 |
* | BC1-5 compressed format (DXTn/S3TC) | 4 | 4 | 4 | 4 | 4 |
* | FXT1 compressed format | 8 | 8 | 8 | 8 | 8 |
* | Depth Buffer (16-bit) | 4 | 4 | 4 | 4 | 8 |
* | Depth Buffer (other) | 4 | 4 | 4 | 4 | 4 |
* | Separate Stencil Buffer | N/A | N/A | 8 | 8 | 8 |
* | All Others | 4 | 4 | 4 | 4 | 4 |
* +----------------------------------------------------------------------+
*
* On IVB+, non-special cases can be overridden by setting the SURFACE_STATE
* "Surface Horizontal Alignment" field to HALIGN_4 or HALIGN_8.
*/
if (_mesa_is_format_compressed(format)) {
/* The hardware alignment requirements for compressed textures
* happen to match the block boundaries.
*/
unsigned int i, j;
_mesa_get_format_block_size(format, &i, &j);
return i;
}
if (format == MESA_FORMAT_S8)
return 8;
/* The depth alignment requirements in the table above are for rendering to
* depth miplevels using the LOD control fields. We don't use LOD control
* fields, and instead use page offsets plus intra-tile x/y offsets, which
* require that the low 3 bits are zero. To reduce the number of x/y
* offset workaround blits we do, align the X to 8, which depth texturing
* can handle (sadly, it can't handle 8 in the Y direction).
*/
if (brw->gen >= 7 &&
_mesa_get_format_base_format(format) == GL_DEPTH_COMPONENT)
return 8;
return 4;
}
/**
* Compute compressed_pixelstore parameters for copying compressed
* texture data.
* \param dims number of texture image dimensions: 1, 2 or 3
* \param texFormat the compressed texture format
* \param width, height, depth size of image to copy
* \param packing pixelstore parameters describing user-space image packing
* \param store returns the compressed_pixelstore parameters
*/
void
_mesa_compute_compressed_pixelstore(GLuint dims, mesa_format texFormat,
GLsizei width, GLsizei height,
GLsizei depth,
const struct gl_pixelstore_attrib *packing,
struct compressed_pixelstore *store)
{
GLuint bw, bh;
_mesa_get_format_block_size(texFormat, &bw, &bh);
store->SkipBytes = 0;
store->TotalBytesPerRow = store->CopyBytesPerRow =
_mesa_format_row_stride(texFormat, width);
store->TotalRowsPerSlice = store->CopyRowsPerSlice =
(height + bh - 1) / bh;
store->CopySlices = depth;
if (packing->CompressedBlockWidth &&
packing->CompressedBlockSize) {
bw = packing->CompressedBlockWidth;
if (packing->RowLength) {
store->TotalBytesPerRow = packing->CompressedBlockSize *
((packing->RowLength + bw - 1) / bw);
}
store->SkipBytes += packing->SkipPixels * packing->CompressedBlockSize / bw;
}
if (dims > 1 && packing->CompressedBlockHeight &&
packing->CompressedBlockSize) {
bh = packing->CompressedBlockHeight;
store->SkipBytes += packing->SkipRows * store->TotalBytesPerRow / bh;
store->CopyRowsPerSlice = (height + bh - 1) / bh; /* rows in blocks */
if (packing->ImageHeight) {
store->TotalRowsPerSlice = (packing->ImageHeight + bh - 1) / bh;
}
}
if (dims > 2 && packing->CompressedBlockDepth &&
packing->CompressedBlockSize) {
int bd = packing->CompressedBlockDepth;
store->SkipBytes += packing->SkipImages * store->TotalBytesPerRow *
store->TotalRowsPerSlice / bd;
}
}
/**
* This is the software fallback for Driver.GetCompressedTexImage().
* All error checking will have been done before this routine is called.
*/
void
_mesa_get_compressed_teximage(GLcontext *ctx, GLenum target, GLint level,
GLvoid *img,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
const GLuint row_stride = _mesa_format_row_stride(texImage->TexFormat,
texImage->Width);
const GLuint row_stride_stored = _mesa_format_row_stride(texImage->TexFormat,
texImage->RowStride);
GLuint i;
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* pack texture image into a PBO */
GLubyte *buf = (GLubyte *)
ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
GL_WRITE_ONLY_ARB, ctx->Pack.BufferObj);
if (!buf) {
/* out of memory or other unexpected error */
_mesa_error(ctx, GL_OUT_OF_MEMORY,
"glGetCompresssedTexImage(map PBO failed)");
return;
}
img = ADD_POINTERS(buf, img);
}
/* no pixelstore or pixel transfer, but respect stride */
if (row_stride == row_stride_stored) {
const GLuint size = _mesa_format_image_size(texImage->TexFormat,
texImage->Width,
texImage->Height,
texImage->Depth);
_mesa_memcpy(img, texImage->Data, size);
}
else {
GLuint bw, bh;
_mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
for (i = 0; i < (texImage->Height + bh - 1) / bh; i++) {
memcpy((GLubyte *)img + i * row_stride,
(GLubyte *)texImage->Data + i * row_stride_stored, row_stride);
}
}
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
ctx->Pack.BufferObj);
}
}
static unsigned int
intel_horizontal_texture_alignment_unit(struct brw_context *brw,
struct intel_mipmap_tree *mt)
{
/**
* From the "Alignment Unit Size" section of various specs, namely:
* - Gen3 Spec: "Memory Data Formats" Volume, Section 1.20.1.4
* - i965 and G45 PRMs: Volume 1, Section 6.17.3.4.
* - Ironlake and Sandybridge PRMs: Volume 1, Part 1, Section 7.18.3.4
* - BSpec (for Ivybridge and slight variations in separate stencil)
*
* +----------------------------------------------------------------------+
* | | alignment unit width ("i") |
* | Surface Property |-----------------------------|
* | | 915 | 965 | ILK | SNB | IVB |
* +----------------------------------------------------------------------+
* | YUV 4:2:2 format | 8 | 4 | 4 | 4 | 4 |
* | BC1-5 compressed format (DXTn/S3TC) | 4 | 4 | 4 | 4 | 4 |
* | FXT1 compressed format | 8 | 8 | 8 | 8 | 8 |
* | Depth Buffer (16-bit) | 4 | 4 | 4 | 4 | 8 |
* | Depth Buffer (other) | 4 | 4 | 4 | 4 | 4 |
* | Separate Stencil Buffer | N/A | N/A | 8 | 8 | 8 |
* | All Others | 4 | 4 | 4 | 4 | 4 |
* +----------------------------------------------------------------------+
*
* On IVB+, non-special cases can be overridden by setting the SURFACE_STATE
* "Surface Horizontal Alignment" field to HALIGN_4 or HALIGN_8.
*/
if (_mesa_is_format_compressed(mt->format)) {
/* The hardware alignment requirements for compressed textures
* happen to match the block boundaries.
*/
unsigned int i, j;
_mesa_get_format_block_size(mt->format, &i, &j);
return i;
}
if (mt->format == MESA_FORMAT_S_UINT8)
return 8;
if (brw->gen >= 7 && mt->format == MESA_FORMAT_Z_UNORM16)
return 8;
if (brw->gen == 8 && mt->mcs_mt && mt->num_samples <= 1)
return 16;
return 4;
}
/**
* All compressed texture texel fetching is done though this function.
* Basically just call a core-Mesa texel fetch function.
*/
static void
fetch_compressed(const struct swrast_texture_image *swImage,
GLint i, GLint j, GLint k, GLfloat *texel)
{
/* The FetchCompressedTexel function takes an integer pixel rowstride,
* while the image's rowstride is bytes per row of blocks.
*/
GLuint bw, bh;
GLuint texelBytes = _mesa_get_format_bytes(swImage->Base.TexFormat);
_mesa_get_format_block_size(swImage->Base.TexFormat, &bw, &bh);
assert(swImage->RowStride * bw % texelBytes == 0);
swImage->FetchCompressedTexel(swImage->ImageSlices[k],
swImage->RowStride * bw / texelBytes,
i, j, texel);
}
/*
* Return the address of the pixel at (col, row, img) in a
* compressed texture image.
* \param col, row, img - image position (3D), should be a multiple of the
* format's block size.
* \param format - compressed image format
* \param width - image width (stride) in pixels
* \param image - the image address
* \return address of pixel at (row, col, img)
*/
GLubyte *
_mesa_compressed_image_address(GLint col, GLint row, GLint img,
gl_format mesaFormat,
GLsizei width, const GLubyte *image)
{
/* XXX only 2D images implemented, not 3D */
const GLuint blockSize = _mesa_get_format_bytes(mesaFormat);
GLuint bw, bh;
GLint offset;
_mesa_get_format_block_size(mesaFormat, &bw, &bh);
ASSERT(col % bw == 0);
ASSERT(row % bh == 0);
offset = ((width + bw - 1) / bw) * (row / bh) + col / bw;
offset *= blockSize;
return (GLubyte *) image + offset;
}
static void
intel_miptree_map_gtt(struct intel_context *intel,
struct intel_mipmap_tree *mt,
struct intel_miptree_map *map,
unsigned int level, unsigned int slice)
{
unsigned int bw, bh;
void *base;
unsigned int image_x, image_y;
int x = map->x;
int y = map->y;
/* For compressed formats, the stride is the number of bytes per
* row of blocks. intel_miptree_get_image_offset() already does
* the divide.
*/
_mesa_get_format_block_size(mt->format, &bw, &bh);
assert(y % bh == 0);
y /= bh;
base = intel_miptree_map_raw(intel, mt) + mt->offset;
if (base == NULL)
map->ptr = NULL;
else {
/* Note that in the case of cube maps, the caller must have passed the
* slice number referencing the face.
*/
intel_miptree_get_image_offset(mt, level, slice, &image_x, &image_y);
x += image_x;
y += image_y;
map->stride = mt->region->pitch;
map->ptr = base + y * map->stride + x * mt->cpp;
}
DBG("%s: %d,%d %dx%d from mt %p (%s) %d,%d = %p/%d\n", __func__,
map->x, map->y, map->w, map->h,
mt, _mesa_get_format_name(mt->format),
x, y, map->ptr, map->stride);
}
static void
brw_miptree_layout_texture_3d(struct brw_context *brw,
struct intel_mipmap_tree *mt)
{
mt->total_width = 0;
mt->total_height = 0;
unsigned ysum = 0;
unsigned bh, bw;
_mesa_get_format_block_size(mt->format, &bw, &bh);
for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
unsigned WL = MAX2(mt->physical_width0 >> level, 1);
unsigned HL = MAX2(mt->physical_height0 >> level, 1);
unsigned DL = MAX2(mt->physical_depth0 >> level, 1);
unsigned wL = ALIGN_NPOT(WL, mt->align_w);
unsigned hL = ALIGN_NPOT(HL, mt->align_h);
if (mt->target == GL_TEXTURE_CUBE_MAP)
DL = 6;
intel_miptree_set_level_info(mt, level, 0, 0, DL);
for (unsigned q = 0; q < DL; q++) {
unsigned x = (q % (1 << level)) * wL;
unsigned y = ysum + (q >> level) * hL;
intel_miptree_set_image_offset(mt, level, q, x / bw, y / bh);
mt->total_width = MAX2(mt->total_width, (x + wL) / bw);
mt->total_height = MAX2(mt->total_height, (y + hL) / bh);
}
ysum += ALIGN(DL, 1 << level) / (1 << level) * hL;
}
align_cube(mt);
}
/**
* Map a 2D slice of a texture image into user space.
* (x,y,w,h) defines a region of interest (ROI). Reading/writing texels
* outside of the ROI is undefined.
*
* \param texImage the texture image
* \param slice the 3D image slice or array texture slice
* \param x, y, w, h region of interest
* \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
* \param mapOut returns start of mapping of region of interest
* \param rowStrideOut returns row stride (in bytes)
*/
void
_swrast_map_teximage(struct gl_context *ctx,
struct gl_texture_image *texImage,
GLuint slice,
GLuint x, GLuint y, GLuint w, GLuint h,
GLbitfield mode,
GLubyte **mapOut,
GLint *rowStrideOut)
{
struct swrast_texture_image *swImage = swrast_texture_image(texImage);
GLubyte *map;
GLint stride, texelSize;
GLuint bw, bh;
_mesa_check_map_teximage(texImage, slice, x, y, w, h);
texelSize = _mesa_get_format_bytes(texImage->TexFormat);
stride = _mesa_format_row_stride(texImage->TexFormat, texImage->Width);
_mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
assert(x % bw == 0);
assert(y % bh == 0);
if (!swImage->Buffer) {
/* probably ran out of memory when allocating tex mem */
*mapOut = NULL;
return;
}
map = swImage->Buffer;
/* apply x/y offset to map address */
map += stride * (y / bh) + texelSize * (x / bw);
*mapOut = map;
*rowStrideOut = stride;
}
static bool
copy_image_with_blitter(struct brw_context *brw,
struct intel_mipmap_tree *src_mt, int src_level,
int src_x, int src_y, int src_z,
struct intel_mipmap_tree *dst_mt, int dst_level,
int dst_x, int dst_y, int dst_z,
int src_width, int src_height)
{
GLuint bw, bh;
uint32_t src_image_x, src_image_y, dst_image_x, dst_image_y;
/* The blitter doesn't understand multisampling at all. */
if (src_mt->num_samples > 0 || dst_mt->num_samples > 0)
return false;
if (src_mt->format == MESA_FORMAT_S_UINT8)
return false;
/* According to the Ivy Bridge PRM, Vol1 Part4, section 1.2.1.2 (Graphics
* Data Size Limitations):
*
* The BLT engine is capable of transferring very large quantities of
* graphics data. Any graphics data read from and written to the
* destination is permitted to represent a number of pixels that
* occupies up to 65,536 scan lines and up to 32,768 bytes per scan line
* at the destination. The maximum number of pixels that may be
* represented per scan line’s worth of graphics data depends on the
* color depth.
*
* Furthermore, intelEmitCopyBlit (which is called below) uses a signed
* 16-bit integer to represent buffer pitch, so it can only handle buffer
* pitches < 32k.
*
* As a result of these two limitations, we can only use the blitter to do
* this copy when the miptree's pitch is less than 32k.
*/
if (src_mt->pitch >= 32768 ||
dst_mt->pitch >= 32768) {
perf_debug("Falling back due to >=32k pitch\n");
return false;
}
intel_miptree_get_image_offset(src_mt, src_level, src_z,
&src_image_x, &src_image_y);
if (_mesa_is_format_compressed(src_mt->format)) {
_mesa_get_format_block_size(src_mt->format, &bw, &bh);
assert(src_x % bw == 0);
assert(src_y % bh == 0);
assert(src_width % bw == 0);
assert(src_height % bh == 0);
src_x /= (int)bw;
src_y /= (int)bh;
src_width /= (int)bw;
src_height /= (int)bh;
}
src_x += src_image_x;
src_y += src_image_y;
intel_miptree_get_image_offset(dst_mt, dst_level, dst_z,
&dst_image_x, &dst_image_y);
if (_mesa_is_format_compressed(dst_mt->format)) {
_mesa_get_format_block_size(dst_mt->format, &bw, &bh);
assert(dst_x % bw == 0);
assert(dst_y % bh == 0);
dst_x /= (int)bw;
dst_y /= (int)bh;
}
dst_x += dst_image_x;
dst_y += dst_image_y;
return intelEmitCopyBlit(brw,
src_mt->cpp,
src_mt->pitch,
src_mt->bo, src_mt->offset,
src_mt->tiling,
src_mt->tr_mode,
dst_mt->pitch,
dst_mt->bo, dst_mt->offset,
dst_mt->tiling,
dst_mt->tr_mode,
src_x, src_y,
dst_x, dst_y,
src_width, src_height,
GL_COPY);
}
bool
intel_miptree_copy(struct brw_context *brw,
struct intel_mipmap_tree *src_mt,
int src_level, int src_slice,
uint32_t src_x, uint32_t src_y,
struct intel_mipmap_tree *dst_mt,
int dst_level, int dst_slice,
uint32_t dst_x, uint32_t dst_y,
uint32_t src_width, uint32_t src_height)
{
/* The blitter doesn't understand multisampling at all. */
if (src_mt->surf.samples > 1 || dst_mt->surf.samples > 1)
return false;
if (src_mt->format == MESA_FORMAT_S_UINT8)
return false;
/* The blitter has no idea about HiZ or fast color clears, so we need to
* resolve the miptrees before we do anything.
*/
intel_miptree_access_raw(brw, src_mt, src_level, src_slice, false);
intel_miptree_access_raw(brw, dst_mt, dst_level, dst_slice, true);
uint32_t src_image_x, src_image_y;
intel_miptree_get_image_offset(src_mt, src_level, src_slice,
&src_image_x, &src_image_y);
if (_mesa_is_format_compressed(src_mt->format)) {
GLuint bw, bh;
_mesa_get_format_block_size(src_mt->format, &bw, &bh);
/* Compressed textures need not have dimensions that are a multiple of
* the block size. Rectangles in compressed textures do need to be a
* multiple of the block size. The one exception is that the right and
* bottom edges may be at the right or bottom edge of the miplevel even
* if it's not aligned.
*/
assert(src_x % bw == 0);
assert(src_y % bh == 0);
assert(src_width % bw == 0 ||
src_x + src_width ==
minify(src_mt->surf.logical_level0_px.width, src_level));
assert(src_height % bh == 0 ||
src_y + src_height ==
minify(src_mt->surf.logical_level0_px.height, src_level));
src_x /= (int)bw;
src_y /= (int)bh;
src_width = DIV_ROUND_UP(src_width, (int)bw);
src_height = DIV_ROUND_UP(src_height, (int)bh);
}
src_x += src_image_x;
src_y += src_image_y;
uint32_t dst_image_x, dst_image_y;
intel_miptree_get_image_offset(dst_mt, dst_level, dst_slice,
&dst_image_x, &dst_image_y);
if (_mesa_is_format_compressed(dst_mt->format)) {
GLuint bw, bh;
_mesa_get_format_block_size(dst_mt->format, &bw, &bh);
assert(dst_x % bw == 0);
assert(dst_y % bh == 0);
dst_x /= (int)bw;
dst_y /= (int)bh;
}
dst_x += dst_image_x;
dst_y += dst_image_y;
return emit_miptree_blit(brw, src_mt, src_x, src_y,
dst_mt, dst_x, dst_y,
src_width, src_height, false, COLOR_LOGICOP_COPY);
}
void GLAPIENTRY
_mesa_CopyImageSubData(GLuint srcName, GLenum srcTarget, GLint srcLevel,
GLint srcX, GLint srcY, GLint srcZ,
GLuint dstName, GLenum dstTarget, GLint dstLevel,
GLint dstX, GLint dstY, GLint dstZ,
GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth)
{
GET_CURRENT_CONTEXT(ctx);
GLuint tmpTexNames[2] = { 0, 0 };
struct gl_texture_object *srcTexObj, *dstTexObj;
struct gl_texture_image *srcTexImage, *dstTexImage;
GLuint src_bw, src_bh, dst_bw, dst_bh;
int i, srcNewZ, dstNewZ, Bpt;
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glCopyImageSubData(%u, %s, %d, %d, %d, %d, "
"%u, %s, %d, %d, %d, %d, "
"%d, %d, %d)\n",
srcName, _mesa_lookup_enum_by_nr(srcTarget), srcLevel,
srcX, srcY, srcZ,
dstName, _mesa_lookup_enum_by_nr(dstTarget), dstLevel,
dstX, dstY, dstZ,
srcWidth, srcHeight, srcWidth);
if (!ctx->Extensions.ARB_copy_image) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(extension not available)");
return;
}
if (!prepare_target(ctx, srcName, &srcTarget, srcLevel,
&srcTexObj, &srcTexImage, &tmpTexNames[0], "src"))
goto cleanup;
if (!prepare_target(ctx, dstName, &dstTarget, dstLevel,
&dstTexObj, &dstTexImage, &tmpTexNames[1], "dst"))
goto cleanup;
_mesa_get_format_block_size(srcTexImage->TexFormat, &src_bw, &src_bh);
if ((srcX % src_bw != 0) || (srcY % src_bh != 0) ||
(srcWidth % src_bw != 0) || (srcHeight % src_bh != 0)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(unaligned src rectangle)");
goto cleanup;
}
_mesa_get_format_block_size(dstTexImage->TexFormat, &dst_bw, &dst_bh);
if ((dstX % dst_bw != 0) || (dstY % dst_bh != 0)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(unaligned dst rectangle)");
goto cleanup;
}
/* Very simple sanity check. This is sufficient if one of the textures
* is compressed. */
Bpt = _mesa_get_format_bytes(srcTexImage->TexFormat);
if (_mesa_get_format_bytes(dstTexImage->TexFormat) != Bpt) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(internalFormat mismatch)");
goto cleanup;
}
if (!check_region_bounds(ctx, srcTexImage, srcX, srcY, srcZ,
srcWidth, srcHeight, srcDepth, "src"))
goto cleanup;
if (!check_region_bounds(ctx, dstTexImage, dstX, dstY, dstZ,
(srcWidth / src_bw) * dst_bw,
(srcHeight / src_bh) * dst_bh, srcDepth, "dst"))
goto cleanup;
if (_mesa_is_format_compressed(srcTexImage->TexFormat)) {
/* XXX: Technically, we should probaby do some more specific checking
* here. However, this should be sufficient for all compressed
* formats that mesa supports since it is a direct memory copy.
*/
} else if (_mesa_is_format_compressed(dstTexImage->TexFormat)) {
} else if (_mesa_texture_view_compatible_format(ctx,
srcTexImage->InternalFormat,
dstTexImage->InternalFormat)) {
} else {
return; /* Error logged by _mesa_texture_view_compatible_format */
}
for (i = 0; i < srcDepth; ++i) {
if (srcTexObj->Target == GL_TEXTURE_CUBE_MAP) {
srcTexImage = srcTexObj->Image[i + srcZ][srcLevel];
srcNewZ = 0;
} else {
srcNewZ = srcZ + i;
}
if (dstTexObj->Target == GL_TEXTURE_CUBE_MAP) {
dstTexImage = dstTexObj->Image[i + dstZ][dstLevel];
dstNewZ = 0;
} else {
dstNewZ = dstZ + i;
}
ctx->Driver.CopyImageSubData(ctx, srcTexImage, srcX, srcY, srcNewZ,
dstTexImage, dstX, dstY, dstNewZ,
srcWidth, srcHeight);
}
cleanup:
_mesa_DeleteTextures(2, tmpTexNames);
}
/**
* Update a subregion of the given texture image.
*/
static void radeon_store_teximage(GLcontext* ctx, int dims,
GLint xoffset, GLint yoffset, GLint zoffset,
GLsizei width, GLsizei height, GLsizei depth,
GLsizei imageSize,
GLenum format, GLenum type,
const GLvoid * pixels,
const struct gl_pixelstore_attrib *packing,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage,
int compressed)
{
radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
radeonTexObj *t = radeon_tex_obj(texObj);
radeon_texture_image* image = get_radeon_texture_image(texImage);
GLuint dstRowStride;
GLuint *dstImageOffsets;
radeon_print(RADEON_TEXTURE, RADEON_TRACE,
"%s(%p, tex %p, image %p) compressed %d\n",
__func__, ctx, texObj, texImage, compressed);
if (image->mt) {
dstRowStride = image->mt->levels[image->mtlevel].rowstride;
} else if (t->bo) {
/* TFP case */
dstRowStride = get_texture_image_row_stride(rmesa, texImage->TexFormat, width, 0);
} else {
dstRowStride = _mesa_format_row_stride(texImage->TexFormat, texImage->Width);
}
assert(dstRowStride);
if (dims == 3) {
unsigned alignedWidth = dstRowStride/_mesa_get_format_bytes(texImage->TexFormat);
dstImageOffsets = allocate_image_offsets(ctx, alignedWidth, texImage->Height, texImage->Depth);
if (!dstImageOffsets) {
radeon_warning("%s Failed to allocate dstImaeOffset.\n", __func__);
return;
}
} else {
dstImageOffsets = texImage->ImageOffsets;
}
radeon_teximage_map(image, GL_TRUE);
if (compressed) {
uint32_t srcRowStride, bytesPerRow, rows, block_width, block_height;
GLubyte *img_start;
_mesa_get_format_block_size(texImage->TexFormat, &block_width, &block_height);
if (!image->mt) {
dstRowStride = _mesa_format_row_stride(texImage->TexFormat, texImage->Width);
img_start = _mesa_compressed_image_address(xoffset, yoffset, 0,
texImage->TexFormat,
texImage->Width, texImage->Data);
}
else {
uint32_t offset;
offset = dstRowStride / _mesa_get_format_bytes(texImage->TexFormat) * yoffset / block_height + xoffset / block_width;
offset *= _mesa_get_format_bytes(texImage->TexFormat);
img_start = texImage->Data + offset;
}
srcRowStride = _mesa_format_row_stride(texImage->TexFormat, width);
bytesPerRow = srcRowStride;
rows = (height + block_height - 1) / block_height;
copy_rows(img_start, dstRowStride, pixels, srcRowStride, rows, bytesPerRow);
}
else {
if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat,
texImage->TexFormat, texImage->Data,
xoffset, yoffset, zoffset,
dstRowStride,
dstImageOffsets,
width, height, depth,
format, type, pixels, packing)) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
}
}
if (dims == 3) {
free(dstImageOffsets);
}
radeon_teximage_unmap(image);
}
static void
brw_miptree_layout_2d(struct intel_mipmap_tree *mt)
{
unsigned x = 0;
unsigned y = 0;
unsigned width = mt->physical_width0;
unsigned height = mt->physical_height0;
unsigned depth = mt->physical_depth0; /* number of array layers. */
unsigned int bw, bh;
_mesa_get_format_block_size(mt->format, &bw, &bh);
mt->total_width = mt->physical_width0;
if (mt->compressed)
mt->total_width = ALIGN_NPOT(mt->total_width, bw);
/* May need to adjust width to accommodate the placement of
* the 2nd mipmap. This occurs when the alignment
* constraints of mipmap placement push the right edge of the
* 2nd mipmap out past the width of its parent.
*/
if (mt->first_level != mt->last_level) {
unsigned mip1_width;
if (mt->compressed) {
mip1_width = ALIGN_NPOT(minify(mt->physical_width0, 1), mt->align_w) +
ALIGN_NPOT(minify(mt->physical_width0, 2), bw);
} else {
mip1_width = ALIGN_NPOT(minify(mt->physical_width0, 1), mt->align_w) +
minify(mt->physical_width0, 2);
}
if (mip1_width > mt->total_width) {
mt->total_width = mip1_width;
}
}
mt->total_width /= bw;
mt->total_height = 0;
for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
unsigned img_height;
intel_miptree_set_level_info(mt, level, x, y, depth);
img_height = ALIGN_NPOT(height, mt->align_h);
if (mt->compressed)
img_height /= bh;
if (mt->array_layout == ALL_SLICES_AT_EACH_LOD) {
/* Compact arrays with separated miplevels */
img_height *= depth;
}
/* Because the images are packed better, the final offset
* might not be the maximal one:
*/
mt->total_height = MAX2(mt->total_height, y + img_height);
/* Layout_below: step right after second mipmap.
*/
if (level == mt->first_level + 1) {
x += ALIGN_NPOT(width, mt->align_w) / bw;
} else {
y += img_height;
}
width = minify(width, 1);
height = minify(height, 1);
if (mt->target == GL_TEXTURE_3D)
depth = minify(depth, 1);
}
}
void GLAPIENTRY
_mesa_CopyImageSubData(GLuint srcName, GLenum srcTarget, GLint srcLevel,
GLint srcX, GLint srcY, GLint srcZ,
GLuint dstName, GLenum dstTarget, GLint dstLevel,
GLint dstX, GLint dstY, GLint dstZ,
GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth)
{
GET_CURRENT_CONTEXT(ctx);
GLuint tmpTexNames[2] = { 0, 0 };
struct gl_texture_object *srcTexObj, *dstTexObj;
struct gl_texture_image *srcTexImage, *dstTexImage;
GLuint src_bw, src_bh, dst_bw, dst_bh;
int i;
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glCopyImageSubData(%u, %s, %d, %d, %d, %d, "
"%u, %s, %d, %d, %d, %d, "
"%d, %d, %d)\n",
srcName, _mesa_lookup_enum_by_nr(srcTarget), srcLevel,
srcX, srcY, srcZ,
dstName, _mesa_lookup_enum_by_nr(dstTarget), dstLevel,
dstX, dstY, dstZ,
srcWidth, srcHeight, srcWidth);
if (!ctx->Extensions.ARB_copy_image) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(extension not available)");
return;
}
if (!prepare_target(ctx, srcName, &srcTarget, srcLevel,
&srcTexObj, &srcTexImage, &tmpTexNames[0], "src"))
goto cleanup;
if (!prepare_target(ctx, dstName, &dstTarget, dstLevel,
&dstTexObj, &dstTexImage, &tmpTexNames[1], "dst"))
goto cleanup;
_mesa_get_format_block_size(srcTexImage->TexFormat, &src_bw, &src_bh);
if ((srcX % src_bw != 0) || (srcY % src_bh != 0) ||
(srcWidth % src_bw != 0) || (srcHeight % src_bh != 0)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(unaligned src rectangle)");
goto cleanup;
}
_mesa_get_format_block_size(dstTexImage->TexFormat, &dst_bw, &dst_bh);
if ((dstX % dst_bw != 0) || (dstY % dst_bh != 0)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(unaligned dst rectangle)");
goto cleanup;
}
if (!check_region_bounds(ctx, srcTexImage, srcX, srcY, srcZ,
srcWidth, srcHeight, srcDepth, "src"))
goto cleanup;
if (!check_region_bounds(ctx, dstTexImage, dstX, dstY, dstZ,
(srcWidth / src_bw) * dst_bw,
(srcHeight / src_bh) * dst_bh, srcDepth, "dst"))
goto cleanup;
if (!copy_format_compatible(ctx, srcTexImage->InternalFormat,
dstTexImage->InternalFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(internalFormat mismatch)");
goto cleanup;
}
for (i = 0; i < srcDepth; ++i) {
int srcNewZ, dstNewZ;
if (srcTexObj->Target == GL_TEXTURE_CUBE_MAP) {
srcTexImage = srcTexObj->Image[i + srcZ][srcLevel];
srcNewZ = 0;
} else {
srcNewZ = srcZ + i;
}
if (dstTexObj->Target == GL_TEXTURE_CUBE_MAP) {
dstTexImage = dstTexObj->Image[i + dstZ][dstLevel];
dstNewZ = 0;
} else {
dstNewZ = dstZ + i;
}
ctx->Driver.CopyImageSubData(ctx, srcTexImage, srcX, srcY, srcNewZ,
dstTexImage, dstX, dstY, dstNewZ,
srcWidth, srcHeight);
}
cleanup:
_mesa_DeleteTextures(2, tmpTexNames);
}
/**
* Decompress a compressed texture image, returning a GL_RGBA/GL_FLOAT image.
* \param srcRowStride stride in bytes between rows of blocks in the
* compressed source image.
*/
void
_mesa_decompress_image(gl_format format, GLuint width, GLuint height,
const GLubyte *src, GLint srcRowStride,
GLfloat *dest)
{
void (*fetch)(const struct swrast_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel);
struct swrast_texture_image texImage; /* dummy teximage */
GLuint i, j;
GLuint bytes, bw, bh;
bytes = _mesa_get_format_bytes(format);
_mesa_get_format_block_size(format, &bw, &bh);
/* setup dummy texture image info */
memset(&texImage, 0, sizeof(texImage));
texImage.Map = (void *) src;
/* XXX This line is a bit of a hack to adapt to the row stride
* convention used by the texture decompression functions.
*/
texImage.RowStride = srcRowStride * bh / bytes;
switch (format) {
/* DXT formats */
case MESA_FORMAT_RGB_DXT1:
fetch = _mesa_fetch_texel_rgb_dxt1;
break;
case MESA_FORMAT_RGBA_DXT1:
fetch = _mesa_fetch_texel_rgba_dxt1;
break;
case MESA_FORMAT_RGBA_DXT3:
fetch = _mesa_fetch_texel_rgba_dxt3;
break;
case MESA_FORMAT_RGBA_DXT5:
fetch = _mesa_fetch_texel_rgba_dxt5;
break;
/* FXT1 formats */
case MESA_FORMAT_RGB_FXT1:
fetch = _mesa_fetch_texel_2d_f_rgb_fxt1;
break;
case MESA_FORMAT_RGBA_FXT1:
fetch = _mesa_fetch_texel_2d_f_rgba_fxt1;
break;
/* Red/RG formats */
case MESA_FORMAT_RED_RGTC1:
fetch = _mesa_fetch_texel_red_rgtc1;
break;
case MESA_FORMAT_SIGNED_RED_RGTC1:
fetch = _mesa_fetch_texel_signed_red_rgtc1;
break;
case MESA_FORMAT_RG_RGTC2:
fetch = _mesa_fetch_texel_rg_rgtc2;
break;
case MESA_FORMAT_SIGNED_RG_RGTC2:
fetch = _mesa_fetch_texel_signed_rg_rgtc2;
break;
/* L/LA formats */
case MESA_FORMAT_L_LATC1:
fetch = _mesa_fetch_texel_l_latc1;
break;
case MESA_FORMAT_SIGNED_L_LATC1:
fetch = _mesa_fetch_texel_signed_l_latc1;
break;
case MESA_FORMAT_LA_LATC2:
fetch = _mesa_fetch_texel_la_latc2;
break;
case MESA_FORMAT_SIGNED_LA_LATC2:
fetch = _mesa_fetch_texel_signed_la_latc2;
break;
/* ETC1 formats */
case MESA_FORMAT_ETC1_RGB8:
fetch = _mesa_fetch_texel_2d_f_etc1_rgb8;
break;
default:
_mesa_problem(NULL, "Unexpected format in _mesa_decompress_image()");
return;
}
for (j = 0; j < height; j++) {
for (i = 0; i < width; i++) {
fetch(&texImage, i, j, 0, dest);
dest += 4;
}
}
}
static void
intel_miptree_set_alignment(struct brw_context *brw,
struct intel_mipmap_tree *mt,
uint32_t layout_flags)
{
/**
* From the "Alignment Unit Size" section of various specs, namely:
* - Gen3 Spec: "Memory Data Formats" Volume, Section 1.20.1.4
* - i965 and G45 PRMs: Volume 1, Section 6.17.3.4.
* - Ironlake and Sandybridge PRMs: Volume 1, Part 1, Section 7.18.3.4
* - BSpec (for Ivybridge and slight variations in separate stencil)
*/
bool gen6_hiz_or_stencil = false;
if (brw->gen == 6 && mt->array_layout == ALL_SLICES_AT_EACH_LOD) {
const GLenum base_format = _mesa_get_format_base_format(mt->format);
gen6_hiz_or_stencil = _mesa_is_depth_or_stencil_format(base_format);
}
if (gen6_hiz_or_stencil) {
/* On gen6, we use ALL_SLICES_AT_EACH_LOD for stencil/hiz because the
* hardware doesn't support multiple mip levels on stencil/hiz.
*
* PRM Vol 2, Part 1, 7.5.3 Hierarchical Depth Buffer:
* "The hierarchical depth buffer does not support the LOD field"
*
* PRM Vol 2, Part 1, 7.5.4.1 Separate Stencil Buffer:
* "The stencil depth buffer does not support the LOD field"
*/
if (mt->format == MESA_FORMAT_S_UINT8) {
/* Stencil uses W tiling, so we force W tiling alignment for the
* ALL_SLICES_AT_EACH_LOD miptree layout.
*/
mt->align_w = 64;
mt->align_h = 64;
assert((layout_flags & MIPTREE_LAYOUT_FORCE_HALIGN16) == 0);
} else {
/* Depth uses Y tiling, so we force need Y tiling alignment for the
* ALL_SLICES_AT_EACH_LOD miptree layout.
*/
mt->align_w = 128 / mt->cpp;
mt->align_h = 32;
}
} else if (mt->compressed) {
/* The hardware alignment requirements for compressed textures
* happen to match the block boundaries.
*/
_mesa_get_format_block_size(mt->format, &mt->align_w, &mt->align_h);
/* On Gen9+ we can pick our own alignment for compressed textures but it
* has to be a multiple of the block size. The minimum alignment we can
* pick is 4 so we effectively have to align to 4 times the block
* size
*/
if (brw->gen >= 9) {
mt->align_w *= 4;
mt->align_h *= 4;
}
} else if (mt->format == MESA_FORMAT_S_UINT8) {
mt->align_w = 8;
mt->align_h = brw->gen >= 7 ? 8 : 4;
} else if (brw->gen >= 9 && mt->tr_mode != INTEL_MIPTREE_TRMODE_NONE) {
/* XY_FAST_COPY_BLT doesn't support horizontal alignment < 32 or
* vertical alignment < 64. */
mt->align_w = MAX2(tr_mode_horizontal_texture_alignment(brw, mt), 32);
mt->align_h = MAX2(tr_mode_vertical_texture_alignment(brw, mt), 64);
} else {
mt->align_w =
intel_horizontal_texture_alignment_unit(brw, mt, layout_flags);
mt->align_h = intel_vertical_texture_alignment_unit(brw, mt);
}
}
void GLAPIENTRY
_mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
GLsizei bufSize, GLint *params)
{
GLint buffer[16];
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
/* ARB_internalformat_query is also mandatory for ARB_internalformat_query2 */
if (!(_mesa_has_ARB_internalformat_query(ctx) ||
_mesa_is_gles3(ctx))) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetInternalformativ");
return;
}
assert(ctx->Driver.QueryInternalFormat != NULL);
if (!_legal_parameters(ctx, target, internalformat, pname, bufSize, params))
return;
/* initialize the contents of the temporary buffer */
memcpy(buffer, params, MIN2(bufSize, 16) * sizeof(GLint));
/* Use the 'unsupported' response defined by the spec for every pname
* as the default answer.
*/
_set_default_response(pname, buffer);
if (!_is_target_supported(ctx, target) ||
!_is_internalformat_supported(ctx, target, internalformat) ||
!_is_resource_supported(ctx, target, internalformat, pname))
goto end;
switch (pname) {
case GL_SAMPLES:
/* fall-through */
case GL_NUM_SAMPLE_COUNTS:
/* The ARB_internalformat_query2 sets the response as 'unsupported' for
* SAMPLES and NUM_SAMPLE_COUNTS:
*
* "If <internalformat> is not color-renderable, depth-renderable, or
* stencil-renderable (as defined in section 4.4.4), or if <target>
* does not support multiple samples (ie other than
* TEXTURE_2D_MULTISAMPLE, TEXTURE_2D_MULTISAMPLE_ARRAY,
* or RENDERBUFFER)."
*/
if ((target != GL_RENDERBUFFER &&
target != GL_TEXTURE_2D_MULTISAMPLE &&
target != GL_TEXTURE_2D_MULTISAMPLE_ARRAY) ||
!_is_renderable(ctx, internalformat))
goto end;
/* The GL ES 3.0 specification, section 6.1.15 page 236 says:
*
* "Since multisampling is not supported for signed and unsigned
* integer internal formats, the value of NUM_SAMPLE_COUNTS will be
* zero for such formats.
*
* Since OpenGL ES 3.1 adds support for multisampled integer formats, we
* have to check the version for 30 exactly.
*/
if (pname == GL_NUM_SAMPLE_COUNTS && ctx->API == API_OPENGLES2 &&
ctx->Version == 30 && _mesa_is_enum_format_integer(internalformat)) {
goto end;
}
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_INTERNALFORMAT_SUPPORTED:
/* Having a supported <internalformat> is implemented as a prerequisite
* for all the <pnames>. Thus, if we reach this point, the internalformat is
* supported.
*/
buffer[0] = GL_TRUE;
break;
case GL_INTERNALFORMAT_PREFERRED:
/* The ARB_internalformat_query2 spec says:
*
* "- INTERNALFORMAT_PREFERRED: The implementation-preferred internal
* format for representing resources of the specified <internalformat> is
* returned in <params>.
*
* Therefore, we let the driver answer. Note that if we reach this
* point, it means that the internalformat is supported, so the driver
* is called just to try to get a preferred format. If not supported,
* GL_NONE was already returned and the driver is not called.
*/
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_INTERNALFORMAT_RED_SIZE:
case GL_INTERNALFORMAT_GREEN_SIZE:
case GL_INTERNALFORMAT_BLUE_SIZE:
case GL_INTERNALFORMAT_ALPHA_SIZE:
case GL_INTERNALFORMAT_DEPTH_SIZE:
case GL_INTERNALFORMAT_STENCIL_SIZE:
case GL_INTERNALFORMAT_SHARED_SIZE:
case GL_INTERNALFORMAT_RED_TYPE:
case GL_INTERNALFORMAT_GREEN_TYPE:
case GL_INTERNALFORMAT_BLUE_TYPE:
case GL_INTERNALFORMAT_ALPHA_TYPE:
case GL_INTERNALFORMAT_DEPTH_TYPE:
case GL_INTERNALFORMAT_STENCIL_TYPE: {
GLint baseformat;
mesa_format texformat;
if (target != GL_RENDERBUFFER) {
if (!_mesa_legal_get_tex_level_parameter_target(ctx, target, true))
goto end;
baseformat = _mesa_base_tex_format(ctx, internalformat);
} else {
baseformat = _mesa_base_fbo_format(ctx, internalformat);
}
/* Let the driver choose the texture format.
*
* Disclaimer: I am considering that drivers use for renderbuffers the
* same format-choice logic as for textures.
*/
texformat = ctx->Driver.ChooseTextureFormat(ctx, target, internalformat,
GL_NONE /*format */, GL_NONE /* type */);
if (texformat == MESA_FORMAT_NONE || baseformat <= 0)
goto end;
/* Implementation based on what Mesa does for glGetTexLevelParameteriv
* and glGetRenderbufferParameteriv functions.
*/
if (pname == GL_INTERNALFORMAT_SHARED_SIZE) {
if (_mesa_has_EXT_texture_shared_exponent(ctx) &&
target != GL_TEXTURE_BUFFER &&
target != GL_RENDERBUFFER &&
texformat == MESA_FORMAT_R9G9B9E5_FLOAT) {
buffer[0] = 5;
}
goto end;
}
if (!_mesa_base_format_has_channel(baseformat, pname))
goto end;
switch (pname) {
case GL_INTERNALFORMAT_DEPTH_SIZE:
if (ctx->API != API_OPENGL_CORE &&
!_mesa_has_ARB_depth_texture(ctx) &&
target != GL_RENDERBUFFER &&
target != GL_TEXTURE_BUFFER)
goto end;
/* fallthrough */
case GL_INTERNALFORMAT_RED_SIZE:
case GL_INTERNALFORMAT_GREEN_SIZE:
case GL_INTERNALFORMAT_BLUE_SIZE:
case GL_INTERNALFORMAT_ALPHA_SIZE:
case GL_INTERNALFORMAT_STENCIL_SIZE:
buffer[0] = _mesa_get_format_bits(texformat, pname);
break;
case GL_INTERNALFORMAT_DEPTH_TYPE:
if (!_mesa_has_ARB_texture_float(ctx))
goto end;
/* fallthrough */
case GL_INTERNALFORMAT_RED_TYPE:
case GL_INTERNALFORMAT_GREEN_TYPE:
case GL_INTERNALFORMAT_BLUE_TYPE:
case GL_INTERNALFORMAT_ALPHA_TYPE:
case GL_INTERNALFORMAT_STENCIL_TYPE:
buffer[0] = _mesa_get_format_datatype(texformat);
break;
default:
break;
}
break;
}
/* For WIDTH/HEIGHT/DEPTH/LAYERS there is no reason to think that the
* returned values should be different to the values returned by
* GetInteger with MAX_TEXTURE_SIZE, MAX_3D_TEXTURE_SIZE, etc.*/
case GL_MAX_WIDTH:
case GL_MAX_HEIGHT:
case GL_MAX_DEPTH: {
GLenum get_pname;
GLint dimensions;
GLint min_dimensions;
/* From query2:MAX_HEIGHT spec (as example):
*
* "If the resource does not have at least two dimensions, or if the
* resource is unsupported, zero is returned."
*/
dimensions = _get_target_dimensions(target);
min_dimensions = _get_min_dimensions(pname);
if (dimensions < min_dimensions)
goto end;
get_pname = _equivalent_size_pname(target, pname);
if (get_pname == 0)
goto end;
_mesa_GetIntegerv(get_pname, buffer);
break;
}
case GL_MAX_LAYERS:
if (!_mesa_has_EXT_texture_array(ctx))
goto end;
if (!_mesa_is_array_texture(target))
goto end;
_mesa_GetIntegerv(GL_MAX_ARRAY_TEXTURE_LAYERS, buffer);
break;
case GL_MAX_COMBINED_DIMENSIONS:{
GLint64 combined_value = 1;
GLenum max_dimensions_pnames[] = {
GL_MAX_WIDTH,
GL_MAX_HEIGHT,
GL_MAX_DEPTH,
GL_SAMPLES
};
unsigned i;
GLint current_value;
/* Combining the dimensions. Note that for array targets, this would
* automatically include the value of MAX_LAYERS, as that value is
* returned as MAX_HEIGHT or MAX_DEPTH */
for (i = 0; i < 4; i++) {
if (max_dimensions_pnames[i] == GL_SAMPLES &&
!_is_multisample_target(target))
continue;
_mesa_GetInternalformativ(target, internalformat,
max_dimensions_pnames[i],
1, ¤t_value);
if (current_value != 0)
combined_value *= current_value;
}
if (_mesa_is_cube_map_texture(target))
combined_value *= 6;
/* We pack the 64-bit value on two 32-bit values. Calling the 32-bit
* query, this would work as far as the value can be hold on a 32-bit
* signed integer. For the 64-bit query, the wrapper around the 32-bit
* query will unpack the value */
memcpy(buffer, &combined_value, sizeof(GLint64));
break;
}
case GL_COLOR_COMPONENTS:
/* The ARB_internalformat_query2 spec says:
*
* "- COLOR_COMPONENTS: If the internal format contains any color
* components (R, G, B, or A), TRUE is returned in <params>.
* If the internal format is unsupported or contains no color
* components, FALSE is returned."
*/
if (_mesa_is_color_format(internalformat))
buffer[0] = GL_TRUE;
break;
case GL_DEPTH_COMPONENTS:
/* The ARB_internalformat_query2 spec says:
*
* "- DEPTH_COMPONENTS: If the internal format contains a depth
* component (D), TRUE is returned in <params>. If the internal format
* is unsupported or contains no depth component, FALSE is returned."
*/
if (_mesa_is_depth_format(internalformat) ||
_mesa_is_depthstencil_format(internalformat))
buffer[0] = GL_TRUE;
break;
case GL_STENCIL_COMPONENTS:
/* The ARB_internalformat_query2 spec says:
*
* "- STENCIL_COMPONENTS: If the internal format contains a stencil
* component (S), TRUE is returned in <params>. If the internal format
* is unsupported or contains no stencil component, FALSE is returned.
*/
if (_mesa_is_stencil_format(internalformat) ||
_mesa_is_depthstencil_format(internalformat))
buffer[0] = GL_TRUE;
break;
case GL_COLOR_RENDERABLE:
case GL_DEPTH_RENDERABLE:
case GL_STENCIL_RENDERABLE:
if (!_is_renderable(ctx, internalformat))
goto end;
if (pname == GL_COLOR_RENDERABLE) {
if (!_mesa_is_color_format(internalformat))
goto end;
} else {
GLenum baseFormat = _mesa_base_fbo_format(ctx, internalformat);
if (baseFormat != GL_DEPTH_STENCIL &&
((pname == GL_DEPTH_RENDERABLE && baseFormat != GL_DEPTH_COMPONENT) ||
(pname == GL_STENCIL_RENDERABLE && baseFormat != GL_STENCIL_INDEX)))
goto end;
}
buffer[0] = GL_TRUE;
break;
case GL_FRAMEBUFFER_RENDERABLE_LAYERED:
if (!_mesa_has_EXT_texture_array(ctx) ||
_legal_target_for_framebuffer_texture_layer(ctx, target))
goto end;
/* fallthrough */
case GL_FRAMEBUFFER_RENDERABLE:
case GL_FRAMEBUFFER_BLEND:
if (!_mesa_has_ARB_framebuffer_object(ctx))
goto end;
if (target == GL_TEXTURE_BUFFER ||
!_is_renderable(ctx, internalformat))
goto end;
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_READ_PIXELS:
case GL_READ_PIXELS_FORMAT:
case GL_READ_PIXELS_TYPE:
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_TEXTURE_IMAGE_FORMAT:
case GL_GET_TEXTURE_IMAGE_FORMAT:
case GL_TEXTURE_IMAGE_TYPE:
case GL_GET_TEXTURE_IMAGE_TYPE:
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_MIPMAP:
case GL_MANUAL_GENERATE_MIPMAP:
case GL_AUTO_GENERATE_MIPMAP:
if (!_mesa_is_valid_generate_texture_mipmap_target(ctx, target) ||
!_mesa_is_valid_generate_texture_mipmap_internalformat(ctx,
internalformat)) {
goto end;
}
if (pname == GL_MIPMAP) {
buffer[0] = GL_TRUE;
goto end;
}
else if (pname == GL_MANUAL_GENERATE_MIPMAP) {
if (!_mesa_has_ARB_framebuffer_object(ctx))
goto end;
}
else {
/* From ARB_internalformat_query2:
* "Dependencies on OpenGL 3.2 (Core Profile)
* In core profiles for OpenGL 3.2 and later versions, queries
* for the AUTO_GENERATE_MIPMAP <pname> return the appropriate
* unsupported response."
*/
if (_mesa_is_desktop_gl(ctx) && ctx->Version >= 32)
goto end;
}
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_COLOR_ENCODING:
if (!_mesa_is_color_format(internalformat))
goto end;
if (_mesa_is_srgb_format(internalformat))
buffer[0] = GL_SRGB;
else
buffer[0] = GL_LINEAR;
break;
case GL_SRGB_READ:
if (!_mesa_has_EXT_texture_sRGB(ctx) ||
!_mesa_is_srgb_format(internalformat)) {
goto end;
}
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_SRGB_WRITE:
if (!_mesa_has_EXT_framebuffer_sRGB(ctx) ||
!_mesa_is_color_format(internalformat)) {
goto end;
}
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_SRGB_DECODE_ARB:
/* Presence of EXT_texture_sRGB_decode was already verified */
if (!_mesa_has_EXT_texture_sRGB(ctx) ||
target == GL_RENDERBUFFER ||
!_mesa_is_srgb_format(internalformat)) {
goto end;
}
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_FILTER:
/* If it doesn't allow to set sampler parameters then it would not allow
* to set a filter different to GL_NEAREST. In practice, this method
* only filters out MULTISAMPLE/MULTISAMPLE_ARRAY */
if (!_mesa_target_allows_setting_sampler_parameters(target))
goto end;
if (_mesa_is_enum_format_integer(internalformat))
goto end;
if (target == GL_TEXTURE_BUFFER)
goto end;
/* At this point we know that multi-texel filtering is supported. We
* need to call the driver to know if it is CAVEAT_SUPPORT or
* FULL_SUPPORT.
*/
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_VERTEX_TEXTURE:
case GL_TESS_CONTROL_TEXTURE:
case GL_TESS_EVALUATION_TEXTURE:
case GL_GEOMETRY_TEXTURE:
case GL_FRAGMENT_TEXTURE:
case GL_COMPUTE_TEXTURE:
if (target == GL_RENDERBUFFER)
goto end;
if ((pname == GL_TESS_CONTROL_TEXTURE ||
pname == GL_TESS_EVALUATION_TEXTURE) &&
!_mesa_has_tessellation(ctx))
goto end;
if (pname == GL_GEOMETRY_TEXTURE && !_mesa_has_geometry_shaders(ctx))
goto end;
if (pname == GL_COMPUTE_TEXTURE && !_mesa_has_compute_shaders(ctx))
goto end;
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_TEXTURE_GATHER:
case GL_TEXTURE_GATHER_SHADOW:
if (!_mesa_has_ARB_texture_gather(ctx))
goto end;
/* fallthrough */
case GL_TEXTURE_SHADOW:
/* Only depth or depth-stencil image formats make sense in shadow
samplers */
if (pname != GL_TEXTURE_GATHER &&
!_mesa_is_depth_format(internalformat) &&
!_mesa_is_depthstencil_format(internalformat))
goto end;
/* Validate the target for shadow and gather operations */
switch (target) {
case GL_TEXTURE_2D:
case GL_TEXTURE_2D_ARRAY:
case GL_TEXTURE_CUBE_MAP:
case GL_TEXTURE_CUBE_MAP_ARRAY:
case GL_TEXTURE_RECTANGLE:
break;
case GL_TEXTURE_1D:
case GL_TEXTURE_1D_ARRAY:
/* 1D and 1DArray textures are not admitted in gather operations */
if (pname != GL_TEXTURE_SHADOW)
goto end;
break;
default:
goto end;
}
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_SHADER_IMAGE_LOAD:
case GL_SHADER_IMAGE_STORE:
if (!_mesa_has_ARB_shader_image_load_store(ctx))
goto end;
/* We call to _mesa_is_shader_image_format_supported
* using "internalformat" as parameter, because the
* the ARB_internalformat_query2 spec says:
* "In this case the <internalformat> is the value of the <format>
* parameter that is passed to BindImageTexture."
*/
if (target == GL_RENDERBUFFER ||
!_mesa_is_shader_image_format_supported(ctx, internalformat))
goto end;
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_SHADER_IMAGE_ATOMIC:
if (!_mesa_has_ARB_shader_image_load_store(ctx))
goto end;
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_IMAGE_TEXEL_SIZE: {
mesa_format image_format;
if (!_mesa_has_ARB_shader_image_load_store(ctx) ||
target == GL_RENDERBUFFER)
goto end;
image_format = _mesa_get_shader_image_format(internalformat);
if (image_format == MESA_FORMAT_NONE)
goto end;
/* We return bits */
buffer[0] = (_mesa_get_format_bytes(image_format) * 8);
break;
}
case GL_IMAGE_COMPATIBILITY_CLASS:
if (!_mesa_has_ARB_shader_image_load_store(ctx) ||
target == GL_RENDERBUFFER)
goto end;
buffer[0] = _mesa_get_image_format_class(internalformat);
break;
case GL_IMAGE_PIXEL_FORMAT: {
GLint base_format;
if (!_mesa_has_ARB_shader_image_load_store(ctx) ||
target == GL_RENDERBUFFER ||
!_mesa_is_shader_image_format_supported(ctx, internalformat))
goto end;
base_format = _mesa_base_tex_format(ctx, internalformat);
if (base_format == -1)
goto end;
if (_mesa_is_enum_format_integer(internalformat))
buffer[0] = _mesa_base_format_to_integer_format(base_format);
else
buffer[0] = base_format;
break;
}
case GL_IMAGE_PIXEL_TYPE: {
mesa_format image_format;
GLenum datatype;
GLuint comps;
if (!_mesa_has_ARB_shader_image_load_store(ctx) ||
target == GL_RENDERBUFFER)
goto end;
image_format = _mesa_get_shader_image_format(internalformat);
if (image_format == MESA_FORMAT_NONE)
goto end;
_mesa_uncompressed_format_to_type_and_comps(image_format, &datatype,
&comps);
if (!datatype)
goto end;
buffer[0] = datatype;
break;
}
case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE: {
if (!_mesa_has_ARB_shader_image_load_store(ctx))
goto end;
if (!_mesa_legal_get_tex_level_parameter_target(ctx, target, true))
goto end;
/* From spec: "Equivalent to calling GetTexParameter with <value> set
* to IMAGE_FORMAT_COMPATIBILITY_TYPE."
*
* GetTexParameter just returns
* tex_obj->ImageFormatCompatibilityType. We create a fake tex_obj
* just with the purpose of getting the value.
*/
struct gl_texture_object *tex_obj = _mesa_new_texture_object(ctx, 0, target);
buffer[0] = tex_obj->ImageFormatCompatibilityType;
_mesa_delete_texture_object(ctx, tex_obj);
break;
}
case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST:
case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST:
case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE:
case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE:
if (target == GL_RENDERBUFFER)
goto end;
if (!_mesa_is_depthstencil_format(internalformat)) {
if (((pname == GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST ||
pname == GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE) &&
!_mesa_is_depth_format(internalformat)) ||
((pname == GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST ||
pname == GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE) &&
!_mesa_is_stencil_format(internalformat)))
goto end;
}
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_TEXTURE_COMPRESSED:
buffer[0] = _mesa_is_compressed_format(ctx, internalformat);
break;
case GL_TEXTURE_COMPRESSED_BLOCK_WIDTH:
case GL_TEXTURE_COMPRESSED_BLOCK_HEIGHT:
case GL_TEXTURE_COMPRESSED_BLOCK_SIZE: {
mesa_format mesaformat;
GLint block_size;
mesaformat = _mesa_glenum_to_compressed_format(internalformat);
if (mesaformat == MESA_FORMAT_NONE)
goto end;
block_size = _mesa_get_format_bytes(mesaformat);
assert(block_size > 0);
if (pname == GL_TEXTURE_COMPRESSED_BLOCK_SIZE) {
buffer[0] = block_size;
} else {
GLuint bwidth, bheight;
/* Returns the width and height in pixels. We return bytes */
_mesa_get_format_block_size(mesaformat, &bwidth, &bheight);
assert(bwidth > 0 && bheight > 0);
if (pname == GL_TEXTURE_COMPRESSED_BLOCK_WIDTH)
buffer[0] = block_size / bheight;
else
buffer[0] = block_size / bwidth;
}
break;
}
case GL_CLEAR_BUFFER:
if (target != GL_TEXTURE_BUFFER)
goto end;
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_TEXTURE_VIEW:
case GL_VIEW_COMPATIBILITY_CLASS:
if (!_mesa_has_ARB_texture_view(ctx) ||
target == GL_TEXTURE_BUFFER ||
target == GL_RENDERBUFFER)
goto end;
if (pname == GL_TEXTURE_VIEW) {
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
} else {
GLenum view_class = _mesa_texture_view_lookup_view_class(ctx,
internalformat);
if (view_class == GL_FALSE)
goto end;
buffer[0] = view_class;
}
break;
default:
unreachable("bad param");
}
end:
if (bufSize != 0 && params == NULL) {
/* Emit a warning to aid application debugging, but go ahead and do the
* memcpy (and probably crash) anyway.
*/
_mesa_warning(ctx,
"glGetInternalformativ(bufSize = %d, but params = NULL)",
bufSize);
}
/* Copy the data from the temporary buffer to the buffer supplied by the
* application. Clamp the size of the copy to the size supplied by the
* application.
*/
memcpy(params, buffer, MIN2(bufSize, 16) * sizeof(GLint));
return;
}
void GLAPIENTRY
_mesa_CopyImageSubData(GLuint srcName, GLenum srcTarget, GLint srcLevel,
GLint srcX, GLint srcY, GLint srcZ,
GLuint dstName, GLenum dstTarget, GLint dstLevel,
GLint dstX, GLint dstY, GLint dstZ,
GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth)
{
GET_CURRENT_CONTEXT(ctx);
GLuint tmpTexNames[2] = { 0, 0 };
struct gl_texture_object *srcTexObj, *dstTexObj;
struct gl_texture_image *srcTexImage, *dstTexImage;
GLuint src_w, src_h, dst_w, dst_h;
GLuint src_bw, src_bh, dst_bw, dst_bh;
int i;
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glCopyImageSubData(%u, %s, %d, %d, %d, %d, "
"%u, %s, %d, %d, %d, %d, "
"%d, %d, %d)\n",
srcName, _mesa_enum_to_string(srcTarget), srcLevel,
srcX, srcY, srcZ,
dstName, _mesa_enum_to_string(dstTarget), dstLevel,
dstX, dstY, dstZ,
srcWidth, srcHeight, srcWidth);
if (!ctx->Extensions.ARB_copy_image) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(extension not available)");
return;
}
if (!prepare_target(ctx, srcName, &srcTarget, srcLevel,
&srcTexObj, &srcTexImage, &tmpTexNames[0],
&src_w, &src_h, "src"))
goto cleanup;
if (!prepare_target(ctx, dstName, &dstTarget, dstLevel,
&dstTexObj, &dstTexImage, &tmpTexNames[1],
&dst_w, &dst_h, "dst"))
goto cleanup;
_mesa_get_format_block_size(srcTexImage->TexFormat, &src_bw, &src_bh);
/* Section 18.3.2 (Copying Between Images) of the OpenGL 4.5 Core Profile
* spec says:
*
* An INVALID_VALUE error is generated if the dimensions of either
* subregion exceeds the boundaries of the corresponding image object,
* or if the image format is compressed and the dimensions of the
* subregion fail to meet the alignment constraints of the format.
*
* and Section 8.7 (Compressed Texture Images) says:
*
* An INVALID_OPERATION error is generated if any of the following
* conditions occurs:
*
* * width is not a multiple of four, and width + xoffset is not
* equal to the value of TEXTURE_WIDTH.
* * height is not a multiple of four, and height + yoffset is not
* equal to the value of TEXTURE_HEIGHT.
*
* so we take that to mean that you can copy the "last" block of a
* compressed texture image even if it's smaller than the minimum block
* dimensions.
*/
if ((srcX % src_bw != 0) || (srcY % src_bh != 0) ||
(srcWidth % src_bw != 0 && (srcX + srcWidth) != src_w) ||
(srcHeight % src_bh != 0 && (srcY + srcHeight) != src_h)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(unaligned src rectangle)");
goto cleanup;
}
_mesa_get_format_block_size(dstTexImage->TexFormat, &dst_bw, &dst_bh);
if ((dstX % dst_bw != 0) || (dstY % dst_bh != 0)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(unaligned dst rectangle)");
goto cleanup;
}
if (!check_region_bounds(ctx, srcTexImage, srcX, srcY, srcZ,
srcWidth, srcHeight, srcDepth, "src"))
goto cleanup;
if (!check_region_bounds(ctx, dstTexImage, dstX, dstY, dstZ,
(srcWidth / src_bw) * dst_bw,
(srcHeight / src_bh) * dst_bh, srcDepth, "dst"))
goto cleanup;
if (!copy_format_compatible(ctx, srcTexImage->InternalFormat,
dstTexImage->InternalFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(internalFormat mismatch)");
goto cleanup;
}
for (i = 0; i < srcDepth; ++i) {
int srcNewZ, dstNewZ;
if (srcTexObj->Target == GL_TEXTURE_CUBE_MAP) {
srcTexImage = srcTexObj->Image[i + srcZ][srcLevel];
srcNewZ = 0;
} else {
srcNewZ = srcZ + i;
}
if (dstTexObj->Target == GL_TEXTURE_CUBE_MAP) {
dstTexImage = dstTexObj->Image[i + dstZ][dstLevel];
dstNewZ = 0;
} else {
dstNewZ = dstZ + i;
}
ctx->Driver.CopyImageSubData(ctx, srcTexImage, srcX, srcY, srcNewZ,
dstTexImage, dstX, dstY, dstNewZ,
srcWidth, srcHeight);
}
cleanup:
_mesa_DeleteTextures(2, tmpTexNames);
}
void GLAPIENTRY
_mesa_CopyImageSubData(GLuint srcName, GLenum srcTarget, GLint srcLevel,
GLint srcX, GLint srcY, GLint srcZ,
GLuint dstName, GLenum dstTarget, GLint dstLevel,
GLint dstX, GLint dstY, GLint dstZ,
GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_texture_image *srcTexImage, *dstTexImage;
struct gl_renderbuffer *srcRenderbuffer, *dstRenderbuffer;
mesa_format srcFormat, dstFormat;
GLenum srcIntFormat, dstIntFormat;
GLuint src_w, src_h, dst_w, dst_h;
GLuint src_bw, src_bh, dst_bw, dst_bh;
GLuint src_num_samples, dst_num_samples;
int dstWidth, dstHeight, dstDepth;
int i;
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glCopyImageSubData(%u, %s, %d, %d, %d, %d, "
"%u, %s, %d, %d, %d, %d, "
"%d, %d, %d)\n",
srcName, _mesa_enum_to_string(srcTarget), srcLevel,
srcX, srcY, srcZ,
dstName, _mesa_enum_to_string(dstTarget), dstLevel,
dstX, dstY, dstZ,
srcWidth, srcHeight, srcDepth);
if (!ctx->Extensions.ARB_copy_image) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(extension not available)");
return;
}
if (!prepare_target(ctx, srcName, srcTarget, srcLevel, srcZ, srcDepth,
&srcTexImage, &srcRenderbuffer, &srcFormat,
&srcIntFormat, &src_w, &src_h, &src_num_samples, "src"))
return;
if (!prepare_target(ctx, dstName, dstTarget, dstLevel, dstZ, srcDepth,
&dstTexImage, &dstRenderbuffer, &dstFormat,
&dstIntFormat, &dst_w, &dst_h, &dst_num_samples, "dst"))
return;
_mesa_get_format_block_size(srcFormat, &src_bw, &src_bh);
/* Section 18.3.2 (Copying Between Images) of the OpenGL 4.5 Core Profile
* spec says:
*
* An INVALID_VALUE error is generated if the dimensions of either
* subregion exceeds the boundaries of the corresponding image object,
* or if the image format is compressed and the dimensions of the
* subregion fail to meet the alignment constraints of the format.
*
* and Section 8.7 (Compressed Texture Images) says:
*
* An INVALID_OPERATION error is generated if any of the following
* conditions occurs:
*
* * width is not a multiple of four, and width + xoffset is not
* equal to the value of TEXTURE_WIDTH.
* * height is not a multiple of four, and height + yoffset is not
* equal to the value of TEXTURE_HEIGHT.
*
* so we take that to mean that you can copy the "last" block of a
* compressed texture image even if it's smaller than the minimum block
* dimensions.
*/
if ((srcX % src_bw != 0) || (srcY % src_bh != 0) ||
(srcWidth % src_bw != 0 && (srcX + srcWidth) != src_w) ||
(srcHeight % src_bh != 0 && (srcY + srcHeight) != src_h)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(unaligned src rectangle)");
return;
}
_mesa_get_format_block_size(dstFormat, &dst_bw, &dst_bh);
if ((dstX % dst_bw != 0) || (dstY % dst_bh != 0)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glCopyImageSubData(unaligned dst rectangle)");
return;
}
/* From the GL_ARB_copy_image spec:
*
* "The dimensions are always specified in texels, even for compressed
* texture formats. But it should be noted that if only one of the
* source and destination textures is compressed then the number of
* texels touched in the compressed image will be a factor of the
* block size larger than in the uncompressed image."
*
* So, if copying from compressed to uncompressed, the dest region is
* shrunk by the src block size factor. If copying from uncompressed
* to compressed, the dest region is grown by the dest block size factor.
* Note that we're passed the _source_ width, height, depth and those
* dimensions are never changed.
*/
dstWidth = srcWidth * dst_bw / src_bw;
dstHeight = srcHeight * dst_bh / src_bh;
dstDepth = srcDepth;
if (!check_region_bounds(ctx, srcTarget, srcTexImage, srcRenderbuffer,
srcX, srcY, srcZ, srcWidth, srcHeight, srcDepth,
"src"))
return;
if (!check_region_bounds(ctx, dstTarget, dstTexImage, dstRenderbuffer,
dstX, dstY, dstZ, dstWidth, dstHeight, dstDepth,
"dst"))
return;
/* Section 18.3.2 (Copying Between Images) of the OpenGL 4.5 Core Profile
* spec says:
*
* An INVALID_OPERATION error is generated if either object is a texture
* and the texture is not complete, if the source and destination internal
* formats are not compatible, or if the number of samples do not match.
*/
if (!copy_format_compatible(ctx, srcIntFormat, dstIntFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(internalFormat mismatch)");
return;
}
if (src_num_samples != dst_num_samples) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyImageSubData(number of samples mismatch)");
return;
}
/* loop over 2D slices/faces/layers */
for (i = 0; i < srcDepth; ++i) {
int newSrcZ = srcZ + i;
int newDstZ = dstZ + i;
if (srcTexImage &&
srcTexImage->TexObject->Target == GL_TEXTURE_CUBE_MAP) {
/* need to update srcTexImage pointer for the cube face */
assert(srcZ + i < MAX_FACES);
srcTexImage = srcTexImage->TexObject->Image[srcZ + i][srcLevel];
assert(srcTexImage);
newSrcZ = 0;
}
if (dstTexImage &&
dstTexImage->TexObject->Target == GL_TEXTURE_CUBE_MAP) {
/* need to update dstTexImage pointer for the cube face */
assert(dstZ + i < MAX_FACES);
dstTexImage = dstTexImage->TexObject->Image[dstZ + i][dstLevel];
assert(dstTexImage);
newDstZ = 0;
}
ctx->Driver.CopyImageSubData(ctx,
srcTexImage, srcRenderbuffer,
srcX, srcY, newSrcZ,
dstTexImage, dstRenderbuffer,
dstX, dstY, newDstZ,
srcWidth, srcHeight);
}
}
static void
copy_image_with_memcpy(struct brw_context *brw,
struct intel_mipmap_tree *src_mt, int src_level,
int src_x, int src_y, int src_z,
struct intel_mipmap_tree *dst_mt, int dst_level,
int dst_x, int dst_y, int dst_z,
int src_width, int src_height)
{
bool same_slice;
void *mapped, *src_mapped, *dst_mapped;
ptrdiff_t src_stride, dst_stride, cpp;
int map_x1, map_y1, map_x2, map_y2;
GLuint src_bw, src_bh;
cpp = _mesa_get_format_bytes(src_mt->format);
_mesa_get_format_block_size(src_mt->format, &src_bw, &src_bh);
assert(src_width % src_bw == 0);
assert(src_height % src_bh == 0);
assert(src_x % src_bw == 0);
assert(src_y % src_bh == 0);
/* If we are on the same miptree, same level, and same slice, then
* intel_miptree_map won't let us map it twice. We have to do things a
* bit differently. In particular, we do a single map large enough for
* both portions and in read-write mode.
*/
same_slice = src_mt == dst_mt && src_level == dst_level && src_z == dst_z;
if (same_slice) {
assert(dst_x % src_bw == 0);
assert(dst_y % src_bh == 0);
map_x1 = MIN2(src_x, dst_x);
map_y1 = MIN2(src_y, dst_y);
map_x2 = MAX2(src_x, dst_x) + src_width;
map_y2 = MAX2(src_y, dst_y) + src_height;
intel_miptree_map(brw, src_mt, src_level, src_z,
map_x1, map_y1, map_x2 - map_x1, map_y2 - map_y1,
GL_MAP_READ_BIT | GL_MAP_WRITE_BIT,
&mapped, &src_stride);
dst_stride = src_stride;
/* Set the offsets here so we don't have to think about while looping */
src_mapped = mapped + ((src_y - map_y1) / src_bh) * src_stride +
((src_x - map_x1) / src_bw) * cpp;
dst_mapped = mapped + ((dst_y - map_y1) / src_bh) * dst_stride +
((dst_x - map_x1) / src_bw) * cpp;
} else {
intel_miptree_map(brw, src_mt, src_level, src_z,
src_x, src_y, src_width, src_height,
GL_MAP_READ_BIT, &src_mapped, &src_stride);
intel_miptree_map(brw, dst_mt, dst_level, dst_z,
dst_x, dst_y, src_width, src_height,
GL_MAP_WRITE_BIT, &dst_mapped, &dst_stride);
}
src_width /= (int)src_bw;
src_height /= (int)src_bh;
for (int i = 0; i < src_height; ++i) {
memcpy(dst_mapped, src_mapped, src_width * cpp);
src_mapped += src_stride;
dst_mapped += dst_stride;
}
if (same_slice) {
intel_miptree_unmap(brw, src_mt, src_level, src_z);
} else {
intel_miptree_unmap(brw, dst_mt, dst_level, dst_z);
intel_miptree_unmap(brw, src_mt, src_level, src_z);
}
}
